Removing demo app rewrite rule

This wasn't gonna work

Author: dannyroosevelt

docs-v2/next.config.mjs

@@ -545,10 +545,6 @@ export default withNextra({
   },
   async rewrites() {
     return [
-      {
-        source: "/connect/demo/:path*",
-        destination: "https://pipedream-connect-demo.vercel.app/:path*",
-      },
       {
         source: "/shopify-faq-2023-10",
         destination: "/deprecated/shopify-faq-2023-10",